So after a really large number of hours of 3D printing, and 4+ spools of plastic later, I present to you my largest printing project to date. A companion cube. I'll try and get a video of it in action later.

Looks good. Just FYI, 0.4mm layer height is really pushing it. You want to maintain a width to thickness ratio of > 1.2 for best adhesion, and that means calling for almost a 0.5mm trace width out of a 0.35mm nozzle. But hey, if it's working for you, don't let me tell you otherwise.